Preparation of Vanadium Oxalate by Solvent Extraction and Purification with P507 and Its Physicochemical Properties
文献类型：期刊论文
| 作者 | Zhang, J; Zhu, ZW; Lei, Z; Wang, LN; Chen, DS; Yi, AF; Su, H; Qi, T; Zhang Jian; Zhu Zhaowu |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2019 |
| 卷号 | 40期号:4页码:740 |
| 关键词 | Vanadium leach solution Stripping Crystallization VOC2O4 Physicochemical characterization |
| ISSN号 | 0251-0790 |
| DOI | 10.7503/cjcu20180528 |
| 文献子类 | Article |
| 英文摘要 | Vanadium oxalate is an ideal precursor used for the preparation of vanadium containing catalysts, advanced phase change material of VO2, high performance VN and other vanadium based chemical products. Currently, few research on the preparation of VOC2O4 was found to be reported. In this study, highly pure vanadium oxalate was prepared through "extraction-stripping-evaporative crystallization" method using 2-ethylhexyl dihydrogen phosphate(P507) as the extractant and H2C2O4 as the stripping reagent from a vanadium leach solution obtained by sodium roasting and water leaching of vanadium titano-magnetite slags. V(IV) stripping from the loaded P507 solution with H2C2O4 was emphatically studied and the stripping conditions were optimized. The result showed that vanadium could be almost completely (99. 98%) stripped at an A/O ratio of 1 :5 and 50 degrees C using 2. 0 mol/L oxalic acid solution in three stages (theoretical). The concentration of VOC2O4 would reach 290 g/L in the loaded strip liquor. The vanadium oxalate was characterized by X-ray diffraction (XRD), energy dispersive spectrometer(EDS), field emission scanning electron microscope (SEM) and synchronous thermal analyzer(TGA-DSC). The result showed that vanadium oxalate was VOC2O4 center dot 2H(2)O and it had high purity, good crystallinity and average particle size distribution. |
| WOS记录号 | WOS:000468465500017 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28242]  |
| 专题 | 中国科学院过程工程研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, J,Zhu, ZW,Lei, Z,et al. Preparation of Vanadium Oxalate by Solvent Extraction and Purification with P507 and Its Physicochemical Properties[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2019,40(4):740, 746. |
| APA | Zhang, J.,Zhu, ZW.,Lei, Z.,Wang, LN.,Chen, DS.,...&Qi Tao.(2019).Preparation of Vanadium Oxalate by Solvent Extraction and Purification with P507 and Its Physicochemical Properties.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,40(4),740. |
| MLA | Zhang, J,et al."Preparation of Vanadium Oxalate by Solvent Extraction and Purification with P507 and Its Physicochemical Properties".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 40.4(2019):740. |
入库方式： OAI收割
来源：过程工程研究所
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